100% analog pedal.
1 between guitar;
1 output amp;
9V power jack or Boss type battery;
1 potentiomtre rglage of "level".
There is a manual but use could not be simpler.
With one potentiomtre, there are VERY quickly the sound you want.
This will boost the clean boost very clear and very transparent, retaining the grain pickups and tone of the amp's overdrive trsmchante but still respects the grain of the basis of his !!dropoff window VERY IMPORTANT for a boost !!
a very good pedal that feels solid and reliability any evidence ...